Apparatus for producing perfect combustion



March 10, 1931. I P. F. NICOLINI 1,795,345

APPARATUS FOR PRODUCING PERFECT COMBUSTION Filed July 5. 1927 z a 7 W 25 I 1 A :J- 326 4 6 7 g awmwtflo'qv Patented Mar. 10, 1931 UNITED STATES PABLO FRANCISCO NICOLINI, OF BUENOS AIRES, ARGENTINA APPARATUS FOR PRODUCING PERFECT .COMiBUSTION' Application filed July 5, 1927, Serial No. 203,620, andin Argentina February 17,1927.

My invention relates toa new apparatus for Fig. l is a general front view of the oven,

in longitudinal section, indicating the boiler 10 or intermediary, pipings, accessories, etc.

Fig. 2 is a horizontal. sectional view thereof. This new apparatus is composed of a boiler (l), embedded within the wall of the oven itself, which has a hearth with grates and ashpan to which access is had through a door (2), a chimney (3), a feed pump (4)., water gauges (5), manometer (6), safety valve (7), a dome for purifying steam (8), pipe where the steam is taken, whichis continued by the conduit (9), provided with a valve (10), and which conduit (9) is then prolonged within the interior of the hearth 1n the form of a coil as shown in (11). The object of this coil is to superheat the steam which leaves the boiler or intermediary (1), which superheated steam descends later by the conduit (12) and reaches the revolving arm (13), and by the lower part the steam reaches and enters into the conduit (14), in other words, the pulverizing nozzle. In the lower part of the boiler is placed a conduit (15), through which runs the water from the boiler or intermediary and by gravitation penetrates into a flat coil which is found within the hearth (16) and again enters the conduit (17) the said coil circulating the water and steam to the boiler or intermediary (1). The object of this coil is to have a heating surface sufficient to generate the steam consinned by the burner, the nozzle (14). The

' the whole of its elements and accessories, may reach a pressure of as much as 200 lbs. per square inch, by which, having high pressure steam, and moreover, superheated, the pulverization of the petroleum is obtained with the minimum of steam and the maximum of velocity; as it can easily be understood that s the moist steam extinguishes the fire, and

' consequently it is easy to comprehend that resistance of the boiler or intermediary and v the superheated steam at high pressure produces a wh te fire and a perfect working 1n the pulverization of the petroleum. Never-' 1 thele'ss the apparatus described can start working with a steam pressure of five lbs. per square inch. i

The petroleum is contained in the tank I ('18) and by gravitationdescends to conduit (19) and passes through the jackettedpipe (20), which heats the petroleum as it defor the'first time) until steam is produced in the boiler. This production of steam may also be'initiated by igniting fuel in the hearth .of the oven'and below the coil (16), in case of desiring to leave without effect the use-of the hearth with grate and ash-pan behind door (2), and, once steam is obtained it passes through the dome (8) and into the conduit (9), which is provided with the principal steam'valve (10), and opening this it passes into the-superheate'r (11), and from; there the superheated steam descends to the con duit (12) and reaches'the revolving arm (13), by means'of which it reaches'the pulverizing nozzle (14). For regulatingthe exit of this steam, there is a valve (24), or say 'in the lower part of the pulverizing burner, and in the higher part is found the conduit (23) from where the petroleum that descends from conduit (19) issues, and once the valve (21) is open, the passage of the petroleum is regulated by the valve (22) which allows the passage of the petroleum, which is then pulverized by the superheated steam under pressure, which issues from the nozzle (14), convergent with the exit of the petroleum nozzle In this state the petroleum .is ignited in long flames, the power of which is graduated by means of the entrance of petroleum and the quantity of steam which may be necessary for normal Working, and

which consumption of steam is produced by means of the coil (16), and the consumption of water produced by the Working of the burner, or in other Words, the feed, is efiected by means of the feed pump These nozzles are mounted in an articulated manner 011 a revolving arm (13), on Which the noz zle can revolve in order to enter and leave the hearth; the valve (26) is co-related with a pipe which reaches Within the oven, to introduce steam in a direct manner, and by means of which steam is supplied to the oven at the moment of the baking of the bread.

The merit of my invention consists in the placing of the boiler or intermediary embedded in the Wall of the oven itself, and even in its interior part, to maintain in the apparatus a directand'permanent heating, as the temperature of the oven varies between 150 and 170 degrees centigrade. This point (the embedding of the boiler in the wall), is What precisely forms the principal motive of my invention, by means-of which a permanent steam pressure is obtained, and once the a paratus is putin movement, it is by means of the 'coil (16) that the steam consumed by the burner is generated, and When it is desired to feed the boiler or intermediary, this is effected by means of the pump this feeding may be carried out inmany di erent manners, by means of afloat (25) a pump coupled to an electric motor, an injector of the usual type, or by means of an arrangement whereby the Water will by gravitation enter into the boiler or intermediary.

Having described the nature of my invention, and the manner in which it should be carried out in practice, I declare as my exclusive rightthe following-claim; v In an oven construction for bakeries using hydrocaa'bon burners, including its oven Wall and arch, 'a steam boiler including a furnace embedded between the IWiLll and the arch u-iasonry of the -oven,-an auxiliarysteanrand water circulating means located Within the confinesot the masonry and connected to said boiler for maintaining the steam pressure in. said boiler constant by the'heat absorbed by said masonry after the extinguishing of said burners.

In testimony whereof I-afiix ray-signature. 1 PABLO FRANCISCO NIGOLI'NI. 

